Rotating door.



' M. C. GAGE.

ROTATING DOOR.

APPLICATION FILED MAY 14. 190s.

No. 843,141. PATENTED FEB. 5, 1907.

3 SHEETS-SHEET 1.

f 5 V 'A Z a Il, -V-I- N0. 843,141. 4 PATENTED FEB. 5, 1907.

f M. C. GAGE.

ROTATING DOOR.

APPLICATION FILED MAY 14. 1906.

3 SHEETS-SHEET 2.

No. 843,141. PATEN'IED PEB. 5, 1907. M. C. GAGE.

ROTA'IING DOOR.

APPLICATION FILED MAY 14. 1906.

t 3 SHEETS-SHEET 3.

UNITED STATES :PATENT clarion..`

MoRTiMEI-ic. GAGE, oF BINGHAMTON, NEW YORK. i

noTATlNG Doon.

Specification of Letters Patent.

Patented Feb. 5,' 1907.

Application filed may 14, 1906. serial Nt. 316.813.

Another object is to so arrange the said portion that it may be folded completelyv out of the way when Ythe weather necessitates the doorway being completely open. i

Still another object is to so construct the revolving door that all danger of persons getting caught between the Wings and door- Way will be avoided.

I have also aimed to provide means by which the door will always come to rest in the proper position for people to operate it readily in passing in or out and which will serve also to prevent its moving too rapidly and continuing to rotate after a person has passed through.

` Finally I have sought to improve the door generally as to its lvarious features of construction with a view to increasing its efficienc and durability and rendering it capable o being produced at a lower cost.

With these objects in view the invention includes the various features of construction and arrangement and combination of parts hereinafter described, and particularly set forth in the appended claims.

The invention is illustrated in the accompanying drawings, in which- Figure `1 is a plan view. Fig. 2 is a horizontal section. Fig. 3 is an elevation, partly in section. Figs. 4, 5, and 6 are detail views. Fig. 7 and 8 are detail views of a modification.

Referring by reference characters to the drawings, the numeral 1 designates the wall of a building, and 2 the quadrantal door-casings of substantially the ordinary form and located on opposite sides of the door-opening. The Hoor of the doorway is designated 3 and the top or cover 4.

The rotating door comprises a central portion or member 5 and two side membersor Wings 6, which are arranged parallel to each other and between which the member 5 stands at right angles when the door is used as a rotating door. These side wings or members 6 are rigidly connected at thev top` by a cross-bar or member 7, whichhas-a shaft or pivot-stud 8, extending up through and journaled in a suitable bearing in the top wall 4. The central portion 5 carries a .centrally-arranged pivot pin or stud 9, which engages a corresponding bearing-'recess in the floor 3 and serves as a lower pivot or axis of f rotation for the rotating door.

The side wings are provided with pushrails 10, which are made folding for the urpose hereinafter described, and it wil be readily seen that when a person desiring to pass through the doorway presses against one of these push-rails the'central portion and vside wings will all rotate together, and the rectangular space provided by the cen- L tral member and side wings will, with a minimum sized door, afford a large amount of space for the plerson passing through.

In order t at the door may always be brought to rest with the central member or portion 5 extending transverselyof the doorway and with the side wings in position for ready entrance of .tween them, I provide the following mechanism:

The pivot-stud 8 is ri idly secured to the cross-bar 7 and carries agbove the top wall a bar 11, fast thereto and forming o positelydisposed arms from which project t \e pins or studs 12.

' j An arm 13, pivoted at 14 to the top wall 4,

is placed under the tension of a spring 15 and carries at itsfree end a star-wheel 16, which has four -forked arms 16a. The forks of successive arms are located at a distance from each other correspondin to the distancethe pins 12 are from each ot er, so that the pull of theV spring upon the arm 13 will cause twoof the forked arms 16a to bear against the pins or studs 12' and hold the door in proper position.

The rotation of the door will rotate the cross-bar 1 1, causing one of the studs to push upon the corresponding forked arm, thus swinging the arm 13 against the tension of the sprin which will be increased until the door has een moved through an arc ninety degrees,. the star-wheel rotating with the a person into the space be- IOO cross-bar. As soon as the vdiend-center has beencro'ssed the spring will tend to cause the door to swing the remaining ninety degrees without being pushed by the o erator, and as soon as the next forked arm o the star-wheel comes into contact with the other pin or stud the door will -be brought to rest. In order that the central portion of the door may when desired be used as` an ordi-V nary dooror be swung back entirely' out of theway to provide an open passage I coni treme i bent arms or extensions ofarod 20, secured by the e 'es 21 .to the side wing, and make the detacha le connection with this rod. by the sliding boltJlQ, which has a curved end 19b to hook around the rod as the door swings.

The opposite edge of the door is provided with a suitable latch 22 for engaging the other side section or wingand moldings 23 are provided on both side sections orwings, against which the door bears and which form a tight joint From the arranlglement just described it will be seen that w en4 it is desired to use the door as an ordinary door the pivot stud or bolt 9 is raised to disengage it rom its socket, the latch 22 disengaged, and the door may then be swung on the hinges formed b the rod 20, with its arms and the detachab e latch 19.`

One or more bolts 24 may be provided for holding the side wings against rotation at this time.

When it is desired to have the central door sectionA or' member permanently open, the hinge-bolt 19a isdisconnected from the rod by sliding it inwardly, when a slight swinging ofthe memberl 5 will enable its hi e ed e to clear the molding, when it may be olde flat against the sidesection or Awing with itsedges coincident therewith.

Itwill of course be understood that when the sectionv 5 is to be swung independentl of the side sections the push-rails are folde up out of the wa It is desirable to ro vide the central an side sections both wit panes of lass, as shown.

^ deem it advisable to prov ide a rail or rails 25 onthe outer face of each side section,

Y' as these serve to prevent any one from atv tempting to pass into the space between the outer face o f the sectlons and the casing..

Under some circumstances-as, for in? stance, where the doorway is avery large oneit may vbe found desirableA when the doorK is to be used only'as an ordinary hinged door to swing only a part of the section 5 instead of the whole of thissection. This may be accomplished readily by forming this sec' tion 5 in twoparts 5a, and 5b, as shown in Fig. 7 the parts being connected together by hinges 5C. A latch 5l is provided, which .in Aconnection with the hinges serves to connect the two sections rigidly together except when the door is to be used as a Swingin door, and when the parts are thus connecte by the latch the two `sections operate in precisely the same manner as the section 5, hereinbefore described. l

Having thus described my invention, what I claim isi--v r1. In a rotary door, a pair of parallel connected side sections mounted to rotate in unison, a central sectionextending between the same, links connecting one edge of said central section tothe center of one of the side sections, and a detachable connection between the opposite edge and th'e'other secl tion, substantlally as described.

2. In a rotary door, a pair of parallel connected side sections mounted to rotate in unison, a central section extending between the same, links connecting one edge of said central section .to one of the side sections, a detachable latch connection between said edge and said section and/a detachable connection between the op osite edge and the 'other' section, substantla ly as described.

3? The combination with a doorway having quadrantalside casings, of a rotary door com rising opposite parallel side sections rigi ly connected and mounted to rotate together, a central section having a'hinge con-4 nection with the center of one side section and a detachable connection with the other section, and a detachable pivotal connection between saidcentral sectlon and the doorcasing, substantially as described.

4. The combination-,with a door-casing, of a rotating door, a cross member rotating in unison therewith, and a pivoted sprlngpressed 'lever bearing a rotaryrnember acting on said cross member.

5. The4 combination with a door-casing, of

. a rotating door, a cross-.arm connected therewith having .studs on its' opposite ends, a spring-pressed lever and a wheel on said lever having forked arms for engaging said studs,

'substantially as described.

6. 'In a rota door, a pair of parallel connected side sectlons mounted to rotate in unison, a central section extending centrally between' the same, a vertical rod rotatably tions and havingA horizontally-extending mounted in the face of one of the side sec-v IIO y arms connected to the central section .nt a

suitable distance from its edge and forming link connections therefor, and a latch carried at the edge of the central section and adapted to detaohably engage said vertical rod, and

a latch connection for the opposite edge of the centraL section.

MORTIMER C. GAGE.

Witnesses:

JAMES F. PETTIT, PHINNIE R. ST. JOHN 

